The Coupling,clamp,grooved, cataloged under National Stock Number 5342-01-016-3232, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5342-01-016-3232 |
| Primary Part Number | GC550EM300 |
| Item Name | Coupling,clamp,grooved |
| FSC / FSG | 5342 / 53 — Hardware, Weapon System |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Temp Rating | -54.0 CELSIUS AND 677.0 CELSIUS DEGC |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OR QQ-S-365 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| Material Document and Classification | AMS 5525, COMP 660 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732, COMP 660 ASSN STD SINGLE MATERIAL RESPONSE BOLT |
| Material Document and Classification | AMS 5525, COMP 660 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732, COMP 660 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Shape | ROUND |
| Specification/standard Data | 26512-GC550 MANUFACTURERS SPECIFICATION |
| Sealing Inner Liner | NOT INCLUDED |
| Inside Diameter | 3.350 INCHES NOMINAL IN |
| Segment Quantity | 2 |
| Surface Treatment | SILVER NUT |
| Material | IRON ALLOY 660 NUT |
| Material | IRON ALLOY 660 BOLT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| GC550EM300 | Eaton Corporation Div Fed (USA) |
| GC550EM300 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| D2320-300 | 5/9 Secondary reference Eaton Corporation Div Fed |
NSN 5342-01-016-3232 is a Coupling,clamp,grooved, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5342, Hardware, Weapon System. Status: active.
NSN 5342-01-016-3232 has 2 manufacturer part numbers on file: GC550EM300 (Eaton Corporation Div Fed), GC550EM300 (Northrop Grumman Systems Corporation).
Key specifications for GC550EM300: Temp Rating: -54.0 CELSIUS AND 677.0 CELSIUS DEGC; Surface Treatment Document and Classification: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OR QQ-S-365 FED SPEC SINGLE TREATMENT RESPONSE NUT; Material Document and Classification: AMS 5525, COMP 660 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732, COMP 660 ASSN STD SINGLE MATERIAL RESPONSE BOLT; Material Document and Classification: AMS 5525, COMP 660 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732, COMP 660 ASSN STD SINGLE MATERIAL RESPONSE NUT. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.